Cepheid variable

短语

词形变化

Cepheid variables 复数 Cepheid variables

释义与例句

n.
  1. 1.

    A radially pulsating (expanding and contracting) variable star with a regular period and known relationship between period and intrinsic brightness.

    天文

词源

From Latin Delta Cephei, the first such star identified. From Cepheus, the name of the constellation in which such stars were first discovered. From being a star with variable brightness.

来源：wiktionary